The statistics on the Eagles reveal their influence as a rock and roll band. The group's first best-of collection, Their Greatest Hits 1971-1975, is the best-selling album of all time, having sold 26 million copies. It was the first album to be certified platinum (1 million sold) by the Recording Industry Association of America, which introduced that classification in 1976. They released four consecutive number 1 albums between 1975 and 1979-One of These Nights, Their Greatest Hits 1971-1975, Hotel California and The Long Run-which collectively topped Billboard's album chart for 27 weeks. Proving they hadn't lost their touch, the 1994 reunion album Hell Freezes Over occupied the number 1 spot for two weeks. The Eagles charted five number 1 hits, and five more singles made the Top Ten. They sold more albums in the Seventies than any other American band. Moreover, though the band was inactive in the Eighties, their back catalog steadily sold 1.5 million copies a year.